Sweating at night is mainly composed of two main types of factors: one is physiological factors; the other is pathological factors. Physiological night sweating, sweating is mainly seen in young children, due to the child’s skin is more delicate, contains more moisture, at the same time, the metabolism is vigorous, the regulation of the vegetative nerve is not sound, the activity is easy to sweat, especially if the child is too much activity before going to bed, easy to sleep at night when the phenomenon of sweating increases. In addition, pathological factors, including tuberculosis, often accompanied by night sweats, diabetes, hyperthyroidism, due to the imbalance of the function of the vegetative nerve, can also appear at night a lot of sweating.